Firewire 400 power but no signal

Yesterday my powerbook firewire stopped working, won't work for ext hds or dvds. The internal cd/dvd drive packed up some time ago so I have since then used the external firewire connection for creating hd backups and reinstalling/ rebooting from externals. I get a light and a whirr but no folder. I think I might have stuck a usb cable into the ethernet socket by mistake. Could that have cuased a fry up?
Any sugestions. Could I run an external HD through a FW pc card in the pc card slot instead. Any help much appreciated.
Jim.

Got the new PCMCIA Card for Firewire/USB - not so great. I can at least access the internal drive for back-ups and cloning now, but I hadn't realised you cannot boot a PB from an Ext HD via the card, you can only boot-up through the original FW socket. So that's the end of that unless I choose to replace the interior board.
Fortunately, bought a card which comes with the AC power adapter, though it is not high enough voltage to run the ext dvd drive.
So, runing from pcmcia card is only a partial solution.

Similar Messages

Firewire 400 port wont work

my issue is... my fire wire 400wont read any firewire 400 device, but my 800 port works fine. however, e wheni route my f 400 devices through my 800 drive, or port, the 800 device is ultimately disengaged ( removed) by the system.
i can understand that a 400 port may be wear out but why would the dv cam or other device, routed through an 800, force the 800 device to shut down. in this case i am uising a power book 15 inch, 1.5 gig, with a lacie porsche 250 gig external 400 firewire ( wont read at all) and a lacie 800 firewire 200 gig drive.
seems to me that since the 800 reads fine, that a 400 device routed through it should be okay too.
any helpwould be greatly appreciated.
also the system profiler doesnt recognize a 400port, but does list an 800 port.
thanks eric

FireWire ports can be reset. Shut down the computer, disconnect all peripheral devices, remove the power cord and the battery. Wait twenty minutes, then restart the computer and check the port. If it still doesn't work, reset the Power Management Unit (PMU) according to the instructions for your specific model.
If neither of these steps help in your situation, then you will need to take the machine in for service.
Good luck!

Connecting firewire 400 to a macbook pro?

which cable would i be needing to connect my m-audio projectmix to my macbook pro 13.3" ?
i'm pretty sure the projectmix uses a firewire 400 cable but obviously this doesnt fit my macbook i think its the 6pin 400 cable that i currently have
also, just a little side question, what cable would i need for my vga monitor so i can use dual screens?
cheers,
nick

Nick,
Be careful plugging in a firewire m-audio device ( or any external FW and USB) if your computer is not turned off. It is best once to start up once the drivers have been loaded and the computer is being started after being completely shut down, once connected it's best to just leave it connected. Of course if you travel it is fine to disconnect but reconnect it while in the shut down state then start up. I have the M-audio Ozonic firewire keyboard and it has a on/off switch, it powers through the firewire cable and in my case it is a fw 400 cable. There are fw 400 to fw 800 cables and adapters available, on Ebay they are a few dollars be careful not to order it from Hong Kong, there are plenty available in the US, I suggest Ebay because every-time I try to get these cool 400 to 800 adapters they are sold out, but I actually love the 400 to 800 cables too. Obviously 400 is half the speed as 800 but there is a little brother to these connection called firewire iEEE 1394, it is like a micro sized connection similar to mini-usb. The speed of the iEEE 1394 varies per system and cable.
As far as connecting dual monitors. You can get the proper adapter from the Apple store or Apple store online. Look up the manual for your system on Apple.com in the support section and it will actually tell you exactly which adapter to use.
I am currently using two systems, With my PowerBook G4 I can connect a monitor to it, and when the system is started up (seeing it is always best to connect cables with no power source connected to any item, monitor or computer and once it is connected the power source may be connected again as well and the system started up, in order to prevent frying or surging) It should recognize your monitor, I have a "24 Acer and I had to only pick which monitor would be where as to it's position to on screen movement. It recognized the proportions and everything perfectly. So I at that point have the option of running dual(split) screens or I can just run the laptop with the lid closed and using only one screen, if I choose that, but I have tons more success with using dual monitors. I just got a Mac Pro and I am super excited because now I will be connecting two FULL sized monitors.... All for music and video work...
I hope that doesn't sound confusing, if you open up your monitor selections at the top menu bar between your Bluetooth setting and Audio volume adjustment setting, you can then choose the correct monitor settings if they have not already auto detected like mine did.. It is nice too.. but the Acer has DVI. I also have a Vizio monitor which I tested my G5 connected with a DVI adapter from the computer to VGA on the Vizio monitor and my Mac found it as soon as the start up was complete and perfectly, it matched the screen resolution and looks beautiful as well.
I love Apples because they are actually fun to work with, I don't mind trouble shooting if you have problems so hit me back if you have other questions or if I have completely scrambled your brains with all the jargin of Firewire and Dual this and that.. Who knows you may have figured this all out before now but either way.. blessings in your direction.
Keep on Keepin' on....
Kelcey

EZ Quest Firewire 400 ext drive works in 10.4 (PPC) but won't mount in 10.6 (Intel)

I have an EZ Quest external FireWire 400 drive. Was working fine on my MDD Mac running OS X 10.4.11. NOW, when I hook it up to my iMac running OS X 10.6.8, it will not mount. Tried different ports. Tried device on and off at boot. Doesn't show up on desktop or in sidebar of finder window or in System Profiler. Drive powers up, but won't mount. Please help. Thanks. Dennis

I have the same problem. Two different EZQuest Quad interface drives suddenly won't mount on my 2010 iMac (Core Duo) via the firewire 800 or 400 ports. If I use a USB cable, both drives mount as normal, but I need the Firewire 800 ports to stream audio samples for Logic.
Both of these drives were working fine for over a year until I upgraded recently to 10.6.8 on the iMac and then tried to use one of the drives yesterday with a new 2012 MacBook Pro (10.7.4). The drive mounted once on the MacBook Pro, then disappeared and now will not mount on either the MacBook Pro or my iMac.
I tried resetting the PRAM and SMC on the iMac, but the drives still won't mount via firewire. The fact that both EZQuest drives still mount via USB indicates this is a firewire problem particular to Mac OS 10.6.8 and 10.7 rather than an external drive problem. It also seems that many people are experiencing this regardless of the external drive brand. Does anybody know how to fix this?

I have full signal power, but says cannot connect to App Store?

I have full signal power, but says cannot connect to App Store. I had put all of my icons in different folders to organize but took App Store out as troubleshoot.
Any help?

Are you trying to connect via wifi?
Look at iOS Troubleshooting Wi-Fi networks and connections http://support.apple.com/kb/TS1398
Also try this - Turn Off your iPad. Then turn Off the wireless router & then back On. Now boot your iPad. Hopefully it will see the WiFi.
 Cheers, Tom

Connecting g4 power mac to g4 ibook firewire 400

I cant seem to get my powermac G4 to recognize when i restart my ibook so i can transfer my hard drive files to my powermac using the firewire 400 connection
PLEASE HELP!!!
tghe powermac g4 doesnt display the icon on the desktop and will not recognize the restart in migration assistant
any ideas!!!

"When I restart my iBook G4 which is the host computer it automatically starts up in firewire mode, and my powermac G4 never starts up in firewire mode."
If your PowerMac G4 is the PCI Graphics model, it doesn't support being the target computer. The iBook would have to be the target computer, connected by FireWire cable to the PowerMac G4 tower (host). If your G4 tower is an AGP Graphics model or newer, it does support Target Disk Mode, and can be the target computer. Remember that only one computer - the target - is started up, while pressing/holding down the "T" key. You don't use a special keyboard command for the host computer.

I just bought a new iMac and am ready to purchase Logic Pro X, but I have a Presonus Fire Studio Project with a firewire 400 as my connection. Will this work with my new iMac? I purchased the Presonus around 2007.

I just bought a new iMac 10.9 and am wanting to purchase Logic Pro X. My question is I have a 2007 Presonus Fire Studio Project 8 channel input box that hooks up with firewire 400 I believe, will this work with Logic ProX on my new iMac?

You will need a Thunderbolt to Firewire adapter... may also need a Firewire 800 to 400 connector/adapter.
Also need to make sure Presonus has Maverick drivers for the FSP.

Power firewire 400 to usb 2.0 adapter

Hello. With a 2nd generation iPod with Firewire 400 cable. Is it possible with an adapter to connect to a new USB 2.0 cable and have ipod recognized? Specifically for Automobile stereo with cable that works fine on ipods and iphones that use this cable for connectivity.

There is no practical way to convert from Firewire data to USB data.
Is yours the one that still had the old Firewire connector on the bottom or is it a slightly later one with the Dock Connector on the bottom?
How to ID your iPod...
http://support.apple.com/kb/ht1353
P.

How will an external Hard drive designed for the macbook Pro work with my White Macbook? My white macbook has a Firewire 400 and the G-Tech HD has a 800 to 400 compatible cable for the firewire.

I am asking this because I want the G-Tech Hard drive says that it is designed for the macbook pro. Yet, I want to back up faster with by using my firewire 400 which is not an option on the one designed for the white macbook that does not have a firewire (only a USB port.) The G-Tech Hard drive comes with the 800 to 400 compatible cable and has 5400 RPM with 750 GB. Also, I've heard that laptops with low battery (mine all the time) won't have the power for a bus powered Hard drive (as in no ac plug in adaptor.) Can I just plug in my laptop? Any one know the answers from experience with this hard drive?

As far as I know, if a harddrive works with a Macpro, it should work with the Macbook: if your Macbook is low on power, plug in the AC adapter
If your Macbook has a firewire port, then it should be fine. BUt i would do somemore research first.

I have an iPod G2 with a firewire 400 lead. how can I attach it to my new 13 inch Mac book Pro, is there a 400 to 800 firewire converter. USB lead wont work with the Macbook Pro. iPod used as an external drive to archive memory cards on the go.

My G2 iPod that I use as an external drive to archive memory cards on the go cannot link with my new 13" Macbook Pro cause it uses a firewire 400 lead. It will not work with a USB lead. Is there a firewire 800 ipod lead or converter available? Can any one shed some light on this please?

As far as I know, if a harddrive works with a Macpro, it should work with the Macbook: if your Macbook is low on power, plug in the AC adapter
If your Macbook has a firewire port, then it should be fine. BUt i would do somemore research first.

I currently have a MAC Mini, which has 1 Firewire 800 port. I have a 1TB external hard disk that runs at Firewire 400. Can I insert another external hard drive that runs at Firewire 800?

Here's the deal. Currently running SL 10.6.8 on a MAC Mini. Planning for eventual upgrade to ML. Have a 1TB external hard drive partitioned into two volumes, one volume for Time Machine and one volume for SL which I periodically update using Superduper. Thus I always have a point-in-time bootable backup on the external hard drive.
The MAC Mini supports Firewire 800. However, booting from my current external hard disk is pretty slow, since it only supports Firewire 400. I am considering buying an Iomega MiniMax which supports Firewire 800. Then, I would use the MiniMax as my bootable backup volume, and relegate the older hard drive to Time Machine.
So, question #1 is, can I daisychain the new MiniMax between the MAC Mini and my existing external hard drive? My expectation is that the new Mini Max would run using Firewire 800 and that the existing hard drive would run at Firewire 400 speed as it does today. If it doesn't (e.g., daisychaining in the Firewire 400 external disk with the MiniMax Firewire 800 external disk ends up running the whole leg at 400), my resolution will be to run the existing hard disk off an available USB port and have just the MiniMax running at Firewire 800.
Why am I going to all this trouble? That's question #2. I don't trust upgrades; they always break something. When I upgraded from 10.5.x to 10.6.x, the web directories got renamed, and all of my web apps 403'd until I figured out what happened. Plus, I have accounts for other family members, and in order to ensure their ability to use the computer during my upgrade process, I need to have the ability to fall-back quickly to a known-stable version of OSX. So what I'm trying to do is insulate myself from problems by partitioning the MiniMax into two volumes, taking a Superduper image of my current installation on the Mac Mini to MiniMax external drive volume 1, then upgrading to ML on the MAC Mini, and take a SuperDuper image of that to MiniMax external drive volume 2. Then, if the upgrade results in problems I can't resolve immediately, I can simply reimage the MAC Mini from MiniMax volume 1. BUT ...
... I've read that the ML installation creates a "service and support" partition that is different than the startup disk. I'm concerned that I won't be able to reimage the hard disk in the MAC Mini once I upgrade it to ML because of the partitioning changes it introduces on the startup disk. Theoretically, I +should+ be able to use the disk utility on my SL system to repartition the disk in the MAC Mini prior to reimaging it from my backup, but I'm considering the possibility that the new partition may be of a type that the SL disk utility cannot identify, and might therefore be unable to delete or even detect. So I'm hoping someone else has been down this road and can advise me. Even at Firewire 800 speeds, booting from an external disk is still going to be slow, so I want to be able to restore my SL image to the MAC Mini hard disk.
A little background on me. I work for a major disaster recovery provider. I used to have a Mac PRO G5, which I got used, and the first thing I did with it was install a second hard disk, SuperDupe an image from the first disk to the second, and made sure I could boot from the second. THEN I started using and customizing the MAC. I really feel vulnerable with the MAC Mini, since it only has the single internal hard drive - sort of like going out in public dressed only in a long T-shirt. So my whole thing is, I ABSOLUTELY MUST BE ABLE TO PUT THINGS BACK THE WAY THEY WERE before I do the migration to ML.
Obsessive-cumpulsive? Yep. Anal? You got it. That's why I'm in the DR business.

You may have overloaded the port, following the instructions below it should reset:
+1. Shut down the computer.+
+2. Disconnect all devices and all other cables, except the keyboard and mouse cable(s).+
+3. Disconnect the computer from the power outlet and wait for 3 to 5 minutes.+
+4. Plug the computer back in and turn it on.+
+5. Reconnect the device(s) (one at a time if there is more than one) and test. Test with each port if you have more than one.+
http://support.apple.com/kb/HT1317?viewlocale=en_US

My iMac won't recognize my external hard drive connected by FireWire 400

I have an external hard drive connected to my Intel-based iMac through a FireWire 400 cable. The drive doesn't come up on the desktop after turning on the hard drive power.
If I connect through the USB cable, it appears quickly on the desktop. Why isn't this working through FireWire? I had some trouble with this in Tiger as well, but was somehow able to get it to work.

The drive does not appear in Disk Utility.
And I don't think I'll be installing DiskWarrior until Leopards countless bugs are fixed, especially after reading THIS:
Alsoft: There are some DiskWarrior "compatibility issues" with Leopard
After previously stating "you can run the (current version of DiskWarrior under Leopard) knowing no harm will come to the hard drive or to your data," Alsoft has now posted a message to its Web site stating "there are some compatibility issues when running an installed copy of DiskWarrior 4.0 while started up from Mac OS X 10.5 Leopard. Alsoft currently recommends that you do not run DiskWarrior 4.0 while the computer is started from Mac OS X 10.5 Leopard."
http://www.macfixit.com/article.php?story=20071026153956503

Firewire 400 to 800 cable not working

Hi
I have just bought a third party Firewire 400 to 800 cable to connect from my Lacie drive's 800 port to the 400 port on my iBook. When I do this, the drive does not mount at all.
Does anyone know why?
best
Aldo

iBook forum this is not. Mac Pros are towers like G5 only Intel.
I would avoid LaCie, but that is me. Also, is the drive bus powered? not good. Have a good power supply?
What did you do last?
Have you run Disk Warrior?
Take the cable back and pick up new FireWire 400 case.
http://www.macsales.com/firewire/
they have cables also.

FireWire Bus Power - How Much Power?

Is there any way to find out how many watts the FireWire bus power is on a Mac?
I have one of these:
http://www.wiebetech.com/products/ultragbplus.php
It's an external bus powered FireWire 800 drive. I have the 500GB version. It runs flawlessly on bus power on my PowerBook G4 17" using the FW 800 cable, and even runs fine on bus power when I try the FW400-to-FW800 cable.
On my Intel iMac Core Duo 20" though, it wil not run on bus power using the very same 400-to-800 cable so I guess the bus power on the iMac has... eh... less power.
It works fine on an iMac G5 using 400-to-800 but on the Intel iMac I have to attach the optional power supply to use it.
QUESTION: Has the bus power on the MacBook Pro changed too, is it lower than on the PowerBook G4???
This IS a strange one...
Intel iMac 2gHz/500/2GB/20" Mac OS X (10.4.6)

According to a FireWire white paper distributed by WiebeTech, FireWire ports usually provide 6-15 watts. A 3,5-inch drive needs 8.
My Intel iMac is not damaged. Any 2,5-inch bus powered drive works flawlessly. I tried this 500GB drive on three iMac G5 machines, works on bus power on all of them. Tried two different PowerBook G4s and it works on bus power on them too. I have now tried three different Intel iMac Core Duo machines and it does not work on any of them so obviously Apple has lowered the FireWire bus power output to just below what this drive needs.
I sent an email to WiebeTech who confirms this as a "known issue" and they don't know how the drive works with the MacBook Pro.... YET.
I guess I will have to try it out, just have to find an MBP

Playing Russian Roulette with Firewire 400 drives and Final Cut Pro

oh boy! this has been a fun week!
I would love to ask the advice of the group about checking the firwire
ports on my computer, and also on the separate external drives.
Here is what has been going on.
Final Cut Pro 5 starts up and then starts to pinwheel.
but in short here is the result, I have recently lost 2 external
FIREWIRE 400 drives, one by LaCie that is my newest drive of the
group, it is 160gb 2 port FW400, and another by ProMax which also has
2 FW400 ports. the lacie was the first to go and is just not mounting
and does not show up using any of my Disk Utility software (even the
heavy duty stuff like DATA RESCUE II or Disk Warrior), I am thinking
that both ports are bad(maybe fried by another bad port on my tower?)I
can hear it when i boot it up and it sounds normal with the same
routine sounds, but it just doesn't mount, nor show up, so is this the
ports?fried?
Now, on my tower I have the following setup - 2 FW400 ports that are
STOCK that came with the TOWER G4 when I bought it. There is also a
FIREWIRE 400 card which has 3 ports. In the past I have used all the
ports for drives, and for a printer and a scanner in my studio.
Everything mounted and worked properly. Then,recently I moved the
drives and the tower to another location(in the room and no I didn't
drop or shake anything) and replugged everything in again, probably in
different slots but upon boot the external firewire drives didn't mount.
I had to UN PLUG them and then RE INSERT them by trial and error(which
I thought normal as I have done this when using these drives with my
laptop, until I got them to mount. they all did mount. However, once
up an running I started Final Cut Pro 5, and it started to get a
PINWHEEL for more than reasonable and if forced me to RESTART the
computer.
The next time, one of the HARDDRIVES (the LaCie 160gb) was no longer
mounting, and I tried to change firewire ports and on the stock and
also on the card for fear that the 3rd party card might be faulty.
I even ran APPLEs HARDWARE Utility and it gave no results as to
anything faulty on the firewire ports. It just said they were there.
Both stock and the PCI firewire card.
Next, I tried to mount this LaCie 160gb onto another computer, with no
results.....it now acts as if both ports are faulty, again, I hear the
drive spinning and going through its initial startup, which sounds
exactly like the other drive, but it never mounts. which is odd...what
is your idea about this drive? and how to save it?
is there a way to take the drive out of the casing and test it in my
other LaCie160gb that is currently working?
2nd, this is where it gets funky, then upon starting Final Cut Pro,
the pinwheel reappeared now with another firewire drive a PROMAX 160gb
that was plugged into the STOCK FW 400 port (on the tower) starting to
show a RED light(not good), however, after restart, I didn't see the
PROMAX drive mount, but I was able to load it up with DATA RESCUE II,
and it is doing a QUICK SCAN to save the DATA on that disk......
now I have backed up most of this data, but the problem now is not the
data, it is whether or not to even plug any of my other drives into
any of these FW ports until I can test them for faultiness.
A friend told me of another friend having a problem where a firewire
port was frying drives as soon as they plugged them into the certain
port. How can you figure this out without re-acting like 'Deerhunter?'
This feels like playing Russian Roulette......if you get my drift?
How do you check any ports for such foul play?
Thanks in advance for your support....
makin

well, now I am finding out that the culprit is I think the POWER MAC g4 itself.
For it has been blowing the firewire ports over time by frying them with power.
Has anyone had this happen?
My Power Mac g4 will not shut down.
It powers itself back up.
I end up having to press the POWER button and holding it, but this sends power to the firewire ports and I can hear them turning on.
so all this time I had just dealt with the issue
Apple had seemed to blame it on a 3rd party MATROX card in the PCI slot.
But, now that has long been taken out of the equation.
The only thing left is that the 17inch MONITOR is plugged into the POWER MAC and for some reason it is keeping a charge?
Can anyone help me in this matter?
As this has haunted me for 5 years with this machine, and I have probably fried more drives than I care to mention.
I just want my computer to SHUT DOWN when I tell it to.
is that too much to ask?
Might the POWER SUPPLY be at fault?
What in God's name could keep this ******* of a computer from shutting down?
I have no USB hubs or keyboards hookedup
the only thing is the MONITOR itself....that you can press its button to shut down etc.
I would be honored to know what this is as APPLE CARE never could figure it out
I didn't want to go through the hassle of taking out the RT MAC card, and just either left the machine on, or Unplugged the thing....
that is a nasty way to shut down a computer is it not?
much thanks to any one who can help me to figure this out?
thanks
singleton

Firewire 400 power but no signal

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